References

Backe-Hansen, P. and J. Throndsen. 2002. Pico- and nanoplankton from the inner Oslofjord, eastern Norway, including description of two new species of Luffisphaera (incerta sedis). Sarsia 87 (1): 55-63.

Belcher, J. H. and E. M. Swale. 1975. Luffisphaera gen.nov., an enigmatic scaly micro-organism. Proceedings of the Royal Society London Series B 188(1093):495-499.

Each ToL branch page provides a synopsis of the characteristics of
a group of organisms representing a branch of the Tree of Life. The
major distinction between a branch and a leaf of
the Tree of Life is that each branch can be further subdivided into
descendent branches, that is, subgroups representing distinct genetic
lineages.